Faxon Rimfire 16″ Straight Fluted 416R Nitride Bull Threaded 10/22 Barrel

The Faxon Rimfire Straight Fluted 416R nitride bull threaded 10/22 barrel delivers precision performance and serious durability for rimfire shooters who want more accuracy out of a Ruger 10/22 or compatible platform. Machined in house from premium 416R stainless steel, this 16 inch barrel is built to the same standards Faxon applies to its centerfire lineup. The straight fluted bull profile adds stiffness, improves barrel harmonics, sheds weight, and helps the barrel dissipate heat.

The 10/22 is the most upgraded rifle in America for a reason. Swap the barrel and you have transformed the gun.

What the Faxon Rimfire Straight Fluted Barrel Is For

This is a drop in accuracy upgrade for the 10/22 pattern. Chambered in .22 Long Rifle, it features 6 groove button rifling and a 1:16 twist rate optimized for both standard and high velocity .22 LR ammunition, which covers essentially everything you are likely to feed it.

It suits plinkers who want tighter groups, competitors shooting precision rimfire matches, trainers running cheap practice that mirrors a centerfire setup, and small game hunters. The threaded muzzle also opens the door to suppressor use where legal, or to a muzzle device if you prefer.

Key Features of the Faxon Rimfire Straight Fluted Bull Barrel

Every element of this barrel targets consistency shot to shot.

• Machined in house from premium 416R stainless steel for accuracy and longevity
• Straight fluted bull profile that adds stiffness while shedding weight
• 16 inch length that keeps the rifle handy without giving up velocity
• 6 groove button rifling with a 1:16 twist optimized for standard and high velocity .22 LR
• Nitride finish for hardness, corrosion resistance, and easy cleaning
• Threaded muzzle for suppressors and muzzle devices

Weight distribution deserves a mention as well. A bull profile puts mass out front, which steadies the rifle for slow fire and bench work, while the flutes on the Faxon Rimfire Straight Fluted barrel claw back enough of that weight to keep the gun carryable in the field. It is a genuine compromise between a target barrel and a walking barrel.

Materials, Rifling, and Why It Shoots Well

416R stainless is the alloy match grade barrel makers reach for. It machines cleanly enough to hold tight tolerances through the bore and chamber, and it resists corrosion in a way ordinary carbon steel does not. Faxon uses the same material and the same process control it applies to its centerfire barrels.

Button rifling produces a smooth, work hardened bore surface. The 6 groove pattern minimizes bullet deformation and fouling, which improves the gas seal behind the bullet and keeps velocities consistent from shot to shot. Consistent velocity is what produces small groups at 50 and 100 yards, especially with rimfire ammunition that is inherently sensitive to variation.

The straight fluting is not cosmetic. Flutes remove material from a bull profile while preserving stiffness, and the added surface area helps heat leave the barrel faster during a long string. Faxon Firearms applies a nitride treatment on top of that for surface hardness and corrosion protection.

Practical Use, Installation, and Care

Installation on a 10/22 pattern receiver is straightforward: clear the rifle, remove the barrel retaining V block screws, swap the barrel, and torque the block evenly. Take your time squaring things up, because uneven clamping is the most common cause of disappointing results after a barrel swap.

Feed it a variety of ammunition and log what shoots best, since rimfire barrels show clear preferences. Clean the bore with a rimfire specific solvent when accuracy starts to drift, keep the crown protected, and wipe the exterior down after wet weather even though stainless and nitride are both corrosion resistant. Keep the muzzle threads capped when nothing is attached. Browse stocks, triggers, and rimfire parts in our parts and upgrades collection.

Stiff, accurate, and finished to last, this barrel is the single highest impact upgrade you can make to a 10/22. Ships direct to your door, no FFL required.